Malicious PDF — malware analysis report

Static analysis result for SHA-256 7105d6496ef29bce…

MALICIOUS

PDF

34.9 KB Created: 2021-07-04 00:07:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b855b46c0b292fb664e503f3d2941420 SHA-1: 2f6ed9feadbd875cdbbab4260f1474b7bdfc0702 SHA-256: 7105d6496ef29bcefdc37f7a57b9e11b0a307645e90f99a716153f0a11bbb704
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free Robux and game hacks, directing users to download a file from a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs further supports a malicious intent to deliver a payload. Although no scripts were explicitly extracted, the document's structure and embedded URLs suggest it is designed to trick users into downloading and executing a secondary malicious file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/431946152/free-robux-generator-no-survey-game-hack In PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/how-to-hack-your-roblox-account_GM431946152.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/hacks-for-roblox-royale-high_GM431946152.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/restaurant-tycoon-2-for-free-today-roblox_GM431946152.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/coin-master-daily-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/roblox-hack-bugmenot_GM431946152.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/how-to-play-paid-roblox-games-for-free_GM431946152.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/roblox-free-hats-game_GM431946152.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/skip-human-verification-on-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/coin-master-invite-friends-free-spins_GM406889139.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/roblox-download-free-windows-10_GM431946152.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/coin-master-hack-iphone_GM406889139.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/how-to-get-5-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://www.e-learningman18jakarta.com/__statics/gudangsoal/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002f16.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F16 23032 bytes
SHA-256: 9a5ef2d2d64932b84b0cb1ec1fab7bb9cb7f00956562090c201c86dc44f44a27
font_01_sfnt_off00006303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6303 19112 bytes
SHA-256: 33dfcb2d47e73eef9736d676cbbc8a7ec86e5e18ee4675d0e02e08c00d2a765b

Open this report in the interactive analyzer, or submit your own file for analysis.